Báo cáo lâm nghiệp: "Physiological, morphological and growth responses to rhizosphere hypoxia by seedlings of North American bottomland oaks" potx
Báo cáo lâm nghiệp: "Physiological, morphological and growth responses to rhizosphere hypoxia by seedlings of North American bottomland oaks" potx
... 400 and 800 μmol m-2 s-1. Stomatal conductance and Original articlePhysiological, morphological and growth responses to rhizosphere hypoxia by seedlings of North American ... stomatal and photosynthetic responses of three bottomland tree species. For Sci 32, 914-923Ponnamperuma FN (1984) Effects of flooding on soils.In: Flooding and Plant Growth ... Photosynthetic and growth responses of silver maple (Acer saccharinumL) seedlings to flooding. Am Midl Nat 112, 261-272Pezeshki SR (1991) Root responses of flood-tolerantand...
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Báo cáo lâm nghiệp: " Pointer years and growth in Turkey oak (Quercus cerris L) in Latium (central Italy). A dendroclimatic approach" docx
... ring width and the standardized vessel diagram. Infact, profiles relative to years 1952 and 1953appear more similar to each other than theydo to years 1951 and 1953, ... residuals and total mean annualprecipitation and the mean annual temper-ature, both arranged from October of yeart-1 to September of year t. There are manypoints of agreement ... to researchers in the Laboratoire de botanique his-torique et palinologie of Marseilles, who trained us to use many dendroclimatic methods.Many thanks to A Parlante and...
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Báo cáo lâm nghiệp: "Biomass, litterfall and nutrient content in Castanea sativa coppice stands of southern Europe" ppt
... Italian and French sites. The only major source of dif-ference seems to be between the DBH rep-artition of all trees of each of the six sites,which induced us to consider ... studiedin Spain, and some of those of France, hadsmaller DBH in comparison to some treesfelled in Italy.Stand biomass estimatesAs two of the Etna stands were young ... per branch, and the ratios of branch and leaf weight to the branch diameter, were alsodetermined. For each tree, the trunk, branch and leaf weights and total biomass...
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Báo cáo lâm nghiệp: "Light-quality and -quantity effects on monoterpene-mediated photo-bleaching of conifer needles" pot
... fumigation of spruce (Piceaabies (L.) Karst.) seedlings and youngplants with P-pinene resulted in a monoter-pene concentration- and photofluency-dependent destruction of chloroplast ... to the experimental treatments, the seedlings had been cultivated in groups of 50on a 3:1 mixture of quartzsand and vermiculiteirrigated with tap water. Cultivation took ... inhibition of respiration and photosyn-thesis by the monoterpene /3-pinene hadbeen demonstrated earlier (Douce et al.,1978; Pauly et al., 1981 The inhibition of photosynthesis...
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Báo cáo lâm nghiệp: "Physiological and morphological responses of dormant and growing Norway spruce container seedlings to drought after planting" docx
... result of the different timing of shoot and root growth, and the impor-tance of current photosynthate to new root growth [32]. Afterbudbreak, provided that seedlings are not exposed to severedrought, ... from –0.96 MPa to –2.22 MPa, indicatingprobably down-regulation of primary photochemistry and theaugmentation of photoprotective mechanisms to avoid overre-duction and photoinhibitory damage ... dormant seedlings after prolonged frozen storageinstead of growing seedlings from the same seedling stock. To achieve this aim, we compared physiological and morpholog-ical responses of dormant and...
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Báo cáo lâm nghiệp: "Modelling dominant height growth and site index curves for rebollo oak (Quercus pyrenaica Willd.)" pptx
... for an adequate asymptote estimation due to theabsence of old stands, probably as a result of the traditionaluse of Q. pyrenaica stands for firewood and charcoal.In spite of the apparent differences ... treatments that need to be carried out ineach of them. At present, due to the state of abandonment and decay in which many of these stands have fallen [10, 12], it isnecessary to establish priority ... source and to rural emigration to the cities. As aresult of this lack of management, these stands now suffer se-vere ecological, economic and social constraints, which mayendanger the existence of...
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Báo cáo lâm nghiệp: "Relationship between root growth potential and field performance in Aleppo pine" doc
... F-values and significance of analysis of variance and RGP values for each test according to the stocklot factor (CA, CL, FA, GE,HT and HU). Mean values and standard error.In the same column, stocklots ... be conducted in growth chambers due to root growth susceptibility to low temperatures and to be able to complete the test in a short period of time (10 days). Theproportion of the variation ... (Jun) and post-summer (Nov) survival in Enguera and La Hunde sites of six outplanted Aleppo pine stocklots.Mean values and standard error.3.2. Field performance and relationship to RGP and seedling...
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Báo cáo lâm nghiệp: "Modelling height and diameter growth of dominant cork oak trees in Spain" ppt
... cover and a well developed understory of annualgrasses. They occupy 275 000 ha (58% of the total surface of Spanish cork oak stands) and produce 48 000 t of cork, whichcorresponds to 54% of the ... 000 ha (42% of the total surface) and produce 41 000 t of cork (46% of the total production) [27, 41]. According to Dewar [16], models can contribute directly to the assessment of sustainable ... stable and consistent results. In the case of the diameter, due to the large number of diameter-age pairs obtained, it was decide to reduce the number of pairs to improve SAS software performance and avoid...
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Báo cáo lâm nghiệp:" Needle longevity, shoot growth and branching frequency in relation to site fertility and within-canopy light conditions in Pinus sylvestris" potx
... area and above- and belowground growth responses of loblolly pine to nutrient and water additions, For. Sci. 44 (1998)317–328.[3] Beaudet M., Messier C., Growth and morphological responses of yellow ... radiation data (MJ m–2 d–1) of Tõravere Actino-metric Station, and a conversion factor of 1.92 mol/MJ [53] wereused to transform the values of Isum to Qint according to Niinemetset al. [53]. ... Bull. Torrey Bot. Club 103 (1976)67–72.[88] Williams H., Messier C., Kneeshaw D.D., Effects of lightavailability and sapling size on the growth and crown morphology of understory Douglas-fir and...
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Báo cáo lâm nghiệp:"Daylength, temperature and fertilization effects on desiccation resistance, cold hardiness and root growth potential of Picea mariana seedlings" docx
... used to increase root growth potential and thereby improve the survival and growth of seedlings used inreforestation. 5. CONCLUSIONThe results of this trial improve the understanding of how seedlings ... and to count needle primordia in the buds of 13 to 30 randomly selected seedlings (averaging 20) per treatment eachweek. Weekly height growth was assessed on a permanent sample of 19 or 20 seedlings ... were placed intoplastic bags lined with damp paper towel and allowed to equilibrate to room temperature before measurement. To determine root growth potential (RGP), one tray of seedlings per...
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